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p-Index From 2021 - 2026
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All Journal Inovasi Matematika (Inomatika) Mathematics Education Journal
Ratu Ilma Indra Putri
Mathematics Education Study Program, Sriwijaya University, Palembang, Indonesia
Education Mathematics Other

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Designing Numeracy Assisted E-Learning Using Palembang Tourism Context during the Covid-19 For Pre-Service Primary School Teachers Jayanti Jayanti; Zulkardi Zulkardi; Ratu Ilma Indra Putri; Yusuf Hartono
Jurnal Inovasi Matematika Vol. 5 No. 2 (2023): Inovasi Matematika
Publisher : Pendidikan Matematika Universitas Muhammadiyah Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35438/inomatika.v5i2.405

Abstract

Pembelajaran setelah masa pandemi COVID-19, fasilitas belajar memanfaatkan bantuan teknologi Informasi (IT) dimana dosen menggunakan platform pembelajaran e-learning SISFO Universitas PGRI Palembang. Penelitian ini bertujuan untuk menghasilkan bahan ajar berupa LKM (Lembar Kerja Mahasiswa) yang berbantuan e-learning sisfo palembang yang valid, praktis serta memiliki efek potensial. Subjek penelitian adalah mahasiswa semester 5 Universitas PGRI Palembang sebnyak 38 orang. Metode Penelitian ini merupakan penelitian design reseach, penelitian pengembangana yang memiliki dua tahapan, yaitu evaluation preliminary, dan evaluation formatif. Evaluasi formatif meliputi evaluasi kurikulum dan bahan ajar, one-to-one dilakukan pada 3 mahasiswa, expert review kepada 3 pakar, dan small group sebanyak 6 orang and field test dengan mahasiswa calon guru SD. Data dikumpulkan melalui panduan, wawancara, dan dokumentasi tentang framework PISA 2022. Konteksnya adalah student tourism di era COVID-19 materi statistik and geometri. Data dianalisis secara deskriptif. Hasil dari penelitian ini adalah menghasilkan prototipe lembar kerja mahasiswa yang valid, praktis dan memiliki efek potensial cukup baik dimana pembelajaran mendukung numerasi matematika yang sesuai dengan Framework PISA 2022 yang terdiri dari isi, kontruks dan Bahasa, serta konteks, tingkat masalah, dan proses pada pembelajaran matematika itu sendiri.
Local Instruction Theory: Supporting Derivative Concept Learning Through Climate Change Context Elika Kurniadi; Zulkardi Zulkardi; Ratu Ilma Indra Putri; Darmawijoyo Darmawijoyo
Mathematics Education Journal Vol. 20 No. 1 (2026): Mathematics Education Journal
Publisher : Universitas Sriwijaya in collaboration with Indonesian Mathematical Society (IndoMS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22342/mej.v20i1.pp27-50

Abstract

This research aims to develop a Local Instructional Theory (LIT) for teaching the concept of derivatives through internalization using the real-life context of climate change. It employed a three-phase design strategy: (1) the development of a Hypothetical Learning Trajectory (HLT); (2) teaching experiments conducted with 5 students in pilot experiments and 37 Grade 11 students in final experiment; and (3) a retrospective analysis. Data was collected through observations of classroom interactions, student worksheets, tests, interviews, and field notes. The retrospective analysis involved comparing the actual learning processes to the HLT. The results indicate that students' perceptions of the derivative developed through three fundamental activities: (1) amount of change and instantaneous rate; (2) rates of change, where the derivative was introduced as a tool for understanding instantaneous changes; and (3) prediction, in which students used derivatives to forecast future climatic patterns. These exercises helped students to conceptually understand the derivative as a measure of instantaneous rate of change, while also promoting mathematical modeling and environmental awareness. The resulting LIT offers a pragmatically based approach to conveying the concept of calculus in contextualized and provides practical implications for the construction of curricula and the teaching of mathematics at the secondary school level.
Reimagining Space: Developing a Museum-Based Local Instructional Theory for Spatial Literacy in Elementary Geometry Dina Octaria; Zulkardi Zulkardi; Ratu Ilma Indra Putri; Cecil Hiltrimartin
Mathematics Education Journal Vol. 20 No. 1 (2026): Mathematics Education Journal
Publisher : Universitas Sriwijaya in collaboration with Indonesian Mathematical Society (IndoMS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22342/mej.v20i1.pp1-26

Abstract

Spatial literacy is a key competency in elementary geometry. However, students often face difficulties in visualization, spatial reasoning, and spatial communication, particularly in learning cubes and cuboids. Common challenges include visualizing nets, understanding volume as layered space, and using formal spatial terminology. This study aims to develop a local instructional theory (LIT) on the volume and surface area of cubes and cuboids to strengthen spatial literacy through a culturally grounded learning trajectory situated in the Sultan Mahmud Badaruddin II Museum. It involved 44 fifth-grade students (aged 10-11) and employed a validation study design consisting of preparing for the experiment, design experiment (pilot and teaching experiments), and retrospective analysis. Data were collected through classroom observations, video recordings, student worksheets, miniature products, and group discussions. The data were then analyzed qualitatively using triangulation. Findings reveal recurring misconceptions, such as incorrect cube nets, interpreting volume as a two-dimensional, conflating surface area and volume, and reliance on informal language. Students’ learning progressed from contextual exploration to formal representation using manipulatives, teacher scaffolding, and Augmented Reality (AR). The resulting LIT is defined by three principles: the integration of manipulatives and AR, an emphasis on inter-dimensional relationships, and the enhancement of formal spatial communication within a Pendekatan Matematika Realistik Indonesia (PMRI) and Project-Based Learning (PjBL) framework.
Co-Authors Cecil Hiltrimartin Darmawijoyo Darmawijoyo Dina Octaria Elika Kurniadi Jayanti, Jayanti Yusuf Hartono Zulkardi Zulkardi